Duplex oil strainer



sept. 25, 192s. 1,685,303

4 J. T. VOORHEIS DUPLEX OIL STRAINER Filed Jan. 28, 1925 Figi. l. Q

YML

ma :Inv/11111 Patented Sept. 25, 1928i.

JOSEPH T. vooRHEIs, or oAKLANn, CALIFORNIA,

' p SAN FRANCISCO, CALIFORNIA, A. CGRPORA'IION 0F CALIFORNIA.v l

l -nUPLEX'oIL srRAINER.

nppiicatin' ined January 2s, 1925. serial No, 5,232;

This invention relates to oilstrainers and especially to a duplex formvthereof.

The object of the present inventionv is to generally improve andsimplify the construction and operation of oil strainers; to providewacasingV having three cylinders formed therein, two for thek reception ofstraners and one for the reception of a valve mechanism;V toprovidemeans whereby the strainers and valveslmay be readily and quicklyremoved'for cleaning, inspection, repair, etc.; to provide a valvemechanism which is adapted to direct the oil flowrthrough one straineror the other, thereremoval and cleaning, while the other is inoperation; -to Yprovide valvesV which will automatically compensate forWear; to prol vide means whichwill visibly indicate the position of thevalve mechanism, or, in other words, the strainer throughrwhich the oilis passingg. and further, to provide an arrangement of strainers,valves,.etc., which permits compact assembly and ready installationwherever required.

One forml which my invention may assume is exemplified in the followingdescription and illustrated in ythe accompanying drawings, in which t 30F ig. lis a planview of theduplex strainer and the valve mechanism'employed in con- Fig. 2 isa front vview. ofthe same. Y, v

Fig. 3l is af verticalcross-section on the being shown ,in'sectionL:Referring to-thedrawings in detail, and

particularly tol-Fig. 1,"Aindicates a easing constructed of Icast-iron.or any other sluit-I able v.material in whichy are formed two B and()`The forwardface of the casing is flanged, asfshown at 2, and ituservesasa support for va second casingfalso constructed generally indicated atD.This lcasing has a cylinder chamber formed therein as Vat 3, thischamber being provided for the reception of avalve mechanism hereinafterto lbe described, whileV the. cylinders B and C are provided for'thereception of strainers through which theoil is passed'v for the purposeof removing sand or otherimpurities. lThe oil to bestrained enters Vtliecylinder by leaving one strainer freeat all timesfor line III- III ofvFigure 1 ;onlyone .valve Sthrough'an inlet port generally indicated lat 4. yIt is then directed by the valvemech- NT;.orricaj Assieivon Toconn coiviriinv.orv 'l' anisni through one'or another'of a pair of inthe casing A. These' ports kdeliver the oil tothe upperends of thestrainer cylin-v ports indicated at 5 `and 6 which `are in direct icommunication 'With-ports 7 and S'formed Y,

rlhis isaccomplished in the'following man- 5*"7 ner: v

By-referring to 'F ig. '3 it will be noted" that the valve cylinder 3 isprovided with upperV and lower removable heads such as shown at' I() and11 respectively. Extending' through the upper Vhead is al valve'stem orlshaft 12. This shaft is supported-by the 4lowerhead and is journalledtherein as attl. Secured on the upper end of the shaft is avvalvefh'ubV14 and similarly 'secured on the lower end of the shaft is a valve hub15. These hubs are provided withprojecting pins 16 and each set of pinsserves as` afsupportfor a segmental', shaped valve, the, upper valvebeing lindicated at 17 and the lowerl valve f at 18. These valves aremaintained incontactA with Lthe Vinner surface of; :the valve cylinder,as springsy 19 are interposedv between thev valvesand the valve hubs."vvIn other words, a pair ofjoating valves zis employed so thatYanywearfwhich'may take place' will be automatically compensated' for.

The valves-are mounted in Adirect valig'iiment, one above the other, andthey thusv servethe function ofV closingtheupper and f f lower ports 6when they:assume'thel position shown i in; F ig. 1 and that` of 'closingthe upper and lower' ports '5" when the valve` is turned-'to thzedottedline position,"also Vshown irl-Fig. 1. 1 i" of cast-iron or similarmaterial, which is To `prevent short-circuiting ofthe oil while passingthrough the valve cylinder and V theljstrainer cylinders, or, "in otherVis indicated at vv20 andis'f-secured `against vertical movement bybeing vplaced betweenV the valve hubs v14 and 15. Itfisfreefonf'theshaft 121andit`fis also' free with relation i Y' l `Y to they interiorsurface of the valve cylinder Vand it may turn, with the shaft 12 orobviously necessitate removal o heads indicated atlO and .11, but'.Surah iSY b with theshafit an thefvalves.

remain stationary as the casemaybe. This is exceedingly important as itlpermits quick "eg .removal V9i thehaft- 12. and the en re va' ebyfinerely removing' the upper head. I() A Xed "diaphragi'n would notpermit such removal oth the not the case where the da hragm may be 'Ykestnanencyhnders. are provided with Vfixed .4m .3.11" lbottom portions,

ht 21.', but removable heads .are .em-- as shown .at 2,2, these .headsbeing Wassenaar,

wanorde, the ioilientersg #mme nndidisfzharges, l

lam and; The exterior'strainersreuen/.es

imm. .an *annular shawn. at 29;.

supported to the. casing.l A, as

vlxxdlliedz-$24,.andtheir opposite. ends are inrkimomddihons 25.@tempel-ism ".With. which, when tightened. the .heads :in positionV @d-wilmly permit readyremoval;v f

",Thestminers positioned Withfn the re.;

essere et the eil Aii'liieh .passes ithrengh. l 1n .from the. exteriorfrein the interagir-and mail-.stehe ilpiifzr1 .end and; Qn itsnteroi'Santee.: and; marges it freelyganw vthe heedfll may be provided with.almob ertensmaoaiandieamd e@ eminem-y Y rio thiksebsoilrfremeredi inellisse. whenever me dem miclqaethesirne dm'jfor instaure, far.straining-.the 011m ehbumingenlentsbetore the .eilis .deliver-ed,te@Minerales.et-thebiirners.

The .Qilrfronl the niimraeatersthe-.intake Bonte-f It the .rallyesfasulnr the; positinnj.v shown :in Eig. i,

thao'hemeripawllxesmmthrought@ nrts 5 an 7 and will thus enter thestnainngcylf hmilghLtliedoWer lpo'izts.- 5y and frand. reenter upwardlythrough `aport 9a` and Y @nallly `'.diseharges' ythrough.l the. outlet;V`9. 'hilethe strainer inoperation, it is obvious .thatno .oil can enterlthe strainer .-3 IThe clamping armfQB may thus Vand the head, togtlfiervwvithlthe T he 4l'wrfsaadf sppeaat 3.1., thus permitting l.freerstrainers, removed for cleaning, inspection, repair or otherwise, afterwhich `the vparts may be .replaced and `.the .valve mechanism .changedto close the ports y5 and 7, The oil .willthen passV through the-,upperports 6 and 8 .thenlthro and'Will finally discharge )tll'igioughthe'lower ports 6 yand148which are in communicationl with the outletconnection 9; it being obvious that dur- ;.this ...period .it .ispossible toA open the :strainer cylinder B for cleaning lor otherwise. YY

By reierivi-ngtorEig. 1-,'it Willhbe-noted tha'tf the several cylindersare arrangede 1in some-v Vwhattifianggi'laji; ormation. ivTljiisisparticu@v larl important asl lp eiunits .compact` as"mecha-nism-V lwhich -ivill at allI times visibly indicate the. posit/ionloff-the valves,y or, iinl other words, the strainer' through W'fhich-vthe4 curing a, lever'fl() on'the `1upper' end" o athe Valve yshaft, Vthemain-function -ofthis leven HechasSmibyy mer-@1y raking @e a@ ...p-ps..headlfg 1 d y i Another importanti-feature .off the prsent invenbOI-ifis the provision of an indieatiig-4 being that ofturninfgthe'-valve'fshaft eroi' 'I moving the valves from one 'seti ofports to another. Formed on the 'inner-end vofihe e levery is.4 ashortilcra-iik armylla Pivotally mounted, as at. 42, onthe`headf-meniber- 10 lfull lines at 4.3. This immediatelyindicates Y lf cati-ng arm'willassufmdthe position shoWni-nl l operatie, itisnhYmus.that theV .stesieenmw be emplailedfsir any .piinpose to' the operator.`.that thevalves are 'closing' the ports Geand-l Bland: that the-oihis-owing through-the .strainer cylinder #When the vmainlevf'er 14.isth'rovvn tothefd-otted line position shown, the position ofgth'eindicat-V in'garm48 reversed, thereby indicating to.

the4 operatorl that portsl 5`4 and? yajre-c'l`osed 'thatthe- ,oilispassing fthroughthe Ystrainer cylinder (lj-No mistake isfth'eie invvtore liable tov occur when removing theheads 1While certain features'of`the present in- I .22 for the purposeof'cleaning-thewstrainers 'l the.inwenpartethe .valve cylinder,3.` It

ltrated, wi'shitr understood vthat various changes in 'for-m .n and'proportion be resorted to within .the scope ot-the appended claims; I=similarly Wish itunderstoodwthat the. materials and-nishof.A the severahparts employed may be such as the experience and judgment of themanufacturer' may dictate or various uses may demand.

Having thus described may invention, what I claim and desire to secureby Letters Patent isl l. A valve vmechanism for regulating the iiow of aliquid through -two separate strainer-containing cylinders, said valvemechanism comprising a cylinder having a pair of ports formed thereinadapted tocommunicate with the upper ends of the respective strainercylinders, and a second Vpair of ports adapted to communicate with thelower ends of the respective strainer cylinout of alignment with therespective ports,-

and `a removable partition member in the cylinder between the valves andVdividing the valve cylinder into upper and lower compartments.

2. A valve mechanism for regulating the flow of a liquid through twoseparate strainer-containing cylinders, said valve mechanism comprisinga cylinder having a pair of ports formed therein adapted to communicatewith the upper ends of the respective strainer cylinders, and a secondpair of ports adapted to communicate with the lower ends of therespective strainer cylinders, said valve vcylinder also having inletand outlet connections in communicationV with the respective ports topermit iniiow and discharge of the liquid to be strained, a shaft vinthe valve cylinder and extending through one end thereof, a pair ofvalves on the shaft cooperating with the respective pairs of ports toopen andclose the same, means for transmitting a turning movement to thelshaft to cause the valves to swing intov or out of alignment Vwith Vtherespective ports, and a disk carried by the shaft and interposed betweenthe valves to divide the valve cylinder into upper and lowercompartments. y

3. A valve mechanism. for regulating the fiowv of a liquid throughtwoseparate strainer-'containing cylinders, said valve mechanismcomprising a cylinder having a pair of ports formed thereinl adapted tocommunicate with the upper ends of the respective strainer cylinders,and a second pair of ports adapted to communicate with the lower ends ofthe respective strainer cylinders, said valve cylinder also having inletand outlet connections in communication with'the respective ports topermit in'- HOW and discharge @fiile .liquid to be strained, a shaft inthe `valve cylinder and extending through one end thereof, a pair ofvalve-supporting members secured on the shaft and turnable inA unisonrtherewith, a `floating valve carried by each valve-supporting member,means for transmitting a turning movment to the shaft to' cause thevalves vto swing into or out` of alignment with the respective ports,and a disk carried by the shaft and interposed Abetween the valves todivide the valve cylinder into upper and lower compartments. y f

JOSEPHl T. VOORHEIS.

